CN217488710U - Biopsy forceps - Google Patents

Abstract

The utility model relates to the field of medical equipment, a biopsy forceps is disclosed. The utility model discloses a biopsy forceps, include: outer tube, steel cable inner core, pincers get portion and handle portion and set up respectively at outer tube's distal end and near-end, and pincers get the portion and include: the steel cable inner core is arranged in the outer sleeve in a penetrating mode, the near end of the steel cable inner core is connected with the handle portion, and the far end of the steel cable inner core is connected with the first jaw cup and the second jaw cup through the linkage assembly. The biopsy forceps of the utility model can drive the forceps taking part to rotate through the handle part, thereby facilitating the grabbing and cutting of the biopsy tissue at the required part; can make the mutual interlock of sawtooth of first jaw cup and second jaw cup through handle portion, realize cutting biopsy tissue, it is convenient to control of portion of getting to the pincers.

Description

Biopsy forceps

Technical Field

The embodiment of the utility model provides a relate to the medical instrument field, concretely relates to biopsy forceps.

Background

Biopsy forceps or biopsy forceps are common tools for sampling living tissues under endoscopes such as alimentary tracts, respiratory tracts and the like. The bronchoscopic biopsy and the percutaneous biopsy are the most common biopsy techniques in clinic, the percutaneous needle biopsy plays a key role in the diagnosis, the staging and the treatment scheme preparation of tumors, and the method has the advantages of small wound, few surgical complications, small influence on patients and the like.

When the biopsy forceps are used, the biopsy forceps enter a human body through an endoscope or a skin, the suspicious lesion position is located from an image, the biopsy forceps grab suspicious lesion tissues, and pathological biopsy and cytology examination are carried out on the suspicious lesion tissues or the suspicious lesion tissues are directly picked up.

However, the biopsy forceps in the prior art are inconvenient to operate and control the clamping part.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biopsy forceps, it is convenient to control to solve the problem among the above-mentioned background art.

The embodiment of the utility model provides a biopsy forceps, include: the outer sleeve, the steel cable inner core, the clamping part and the handle part are arranged on the handle;

the clamping part and the handle part are respectively arranged at the far end and the near end of the outer sleeve, and the handle part is used for driving the clamping part to rotate;

the grasping portion includes: the cup holder, the fixed shaft, the first jaw cup, the second jaw cup and the linkage assembly;

the cup seat is arranged on the outer sleeve and provided with a rectangular through groove;

the fixed shaft is arranged on the cup base and is positioned at the rectangular through groove;

the first jaw cup and the second jaw cup are rotatably arranged on the fixed shaft, and the far ends of the first jaw cup and the second jaw cup are provided with sawteeth;

the wire rope inner core wears to establish in the overcoat pipe, the near-end of wire rope inner core with handle portion connects, and the distal end passes through the linkage subassembly with first jaw cup with the second jaw cup is connected, handle portion is used for making first jaw cup with the distal end of second jaw cup is close to each other and is kept away from, first jaw cup with the distal end of second jaw cup is when being close to each other, first jaw cup with the mutual interlock of sawtooth of second jaw cup is in order to cut biopsy tissue.

According to the above technical scheme, the utility model discloses a biopsy forceps gets portion and handle portion through setting up outer tube, steel cable inner core, pincers, and pincers get a portion and include: the steel cable clamp comprises a cup seat, a fixed shaft, a first clamp mouth cup, a second clamp mouth cup and a linkage assembly, wherein the cup seat is arranged on an outer sleeve, the first clamp mouth cup and the second clamp mouth cup are rotatably arranged on the fixed shaft, a steel cable inner core is arranged in the outer sleeve in a penetrating mode, the near end of the steel cable inner core is connected with a handle portion, and the far end of the steel cable inner core is connected with the first clamp mouth cup and the second clamp mouth cup through the linkage assembly. The biopsy forceps of the utility model can drive the forceps taking part to rotate through the handle part, thereby facilitating the grabbing and cutting of the biopsy tissue at the required part; the saw teeth of the first jaw cup and the second jaw cup are meshed with each other through the handle part, so that the cutting of biopsy tissues is realized, and the operation and the control of the clamping part are convenient; the handle part is kneaded after the jaw cup reaches the biopsy part, the jaw cup is opened, the handle part is loosened, the jaw cup automatically closes the tissue to be clamped and cut, and the operation is convenient and fast.

In one possible approach, the wire rope core comprises: the steel cable, the steel cable connecting pipe and the steel cable connecting rod;

the steel cable connecting pipe is arranged at the far end of the outer sleeve;

the far end of the steel cable is connected with the steel cable connecting pipe, and the near end of the steel cable is connected to the handle part;

the near end of the steel cable connecting rod is connected with the steel cable connecting pipe, and the far end of the steel cable connecting rod extends into the rectangular through groove and is connected with the linkage assembly. By adopting the structure, the connection and fixation of the steel cable inner core, the handle part and the clamping part are convenient.

In one possible approach, the linkage assembly includes: the first connecting sheet, the second connecting sheet and the connecting shaft;

one end of the first connecting sheet and one end of the second connecting sheet are rotatably connected with the steel cable connecting rod through the connecting shaft, and the other ends of the first connecting sheet and the second connecting sheet are rotatably connected with the first jaw cup and the second jaw cup respectively. By adopting the structure, the first jaw cup and the second jaw cup are close to and far away from each other through the drawing of the steel cable inner core.

In one possible solution, the grasping portion further includes: a gasket;

the gasket penetrates through the fixed shaft and is positioned between the first jaw cup and the second jaw cup. By adopting the structure, the rotation of the first jaw cup and the second jaw cup is smoother.

In one possible approach, the handle portion includes: the clamp comprises a first clamp handle, a second clamp handle, a handle shaft and a torsion spring;

the first forceps handle and the second forceps handle are arranged in a scissor shape and are rotatably connected through the handle shafts;

the torsion spring is sleeved on the handle shaft and positioned between the first forceps handle and the second forceps handle, and two ends of the torsion spring are respectively arranged on the first forceps handle and the second forceps handle;

the second clamp handle is provided with a second channel;

the steel cable is slidably arranged in the second channel in a penetrating mode and is fixed on the first clamp handle. By adopting the structure, the first jaw cup and the second jaw cup can be controlled more conveniently.

In a possible scheme, the first clamp handle is provided with a first top cover, the first top cover is detachably arranged on the first clamp handle, and the steel cable is arranged between the first clamp handle and the first top cover in a penetrating manner;

the second clamp handle is provided with a second top cover, the second top cover is detachably arranged on the second clamp handle, and the steel cable is arranged between the second clamp handle and the second top cover. By adopting the structure, the steel cable is more convenient to be connected with the handle part.

In one possible implementation, the handle portion further includes: screwing the cap;

the rotating cap is provided with a connecting column;

the second clamp handle is provided with a fixing groove;

the screw cap is arranged at the far end of the second forceps handle, and the connecting column is inserted into the fixing groove;

the outer sleeve is fixed on the screw cap. By adopting the structure, the rotation of the clamping part is more convenient.

In one possible solution, the handle portion further includes: stopping damage pipe;

the damage stopping pipe is fixedly arranged in the second channel, and the steel cable can be slidably arranged in the damage stopping pipe in a penetrating mode. With this structure, wear of the handle portion is prevented.

In one possible solution, the handle portion further includes: a wire rope fixing tube;

the first clamp handle is provided with a mounting groove and a first channel;

the steel cable fixing pipe is arranged in the mounting groove, and the steel cable penetrates through the first channel and is connected to the steel cable fixing pipe. By adopting the structure, the steel cable rope is more convenient to fix.

In a feasible scheme, the first forceps handle is provided with a first accommodating groove, and the second forceps handle is provided with a second accommodating groove;

the first accommodating groove and the second accommodating groove are respectively used for embedding two ends of the torsion spring. By adopting the structure, the torsion spring can be conveniently fixed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of a biopsy forceps in an embodiment of the invention;

fig. 2 is an enlarged view of a point a in fig. 1 in an embodiment of the present invention;

fig. 3 is an enlarged view of a portion B in fig. 1 according to an embodiment of the present invention;

fig. 4 is a schematic view of a linkage assembly in an embodiment of the present invention;

fig. 5 is a schematic view of a gasket according to an embodiment of the present invention;

fig. 6 is a partial schematic view of a handle portion in an embodiment of the invention;

fig. 7 is another partial schematic view of the handle portion in an embodiment of the present invention.

Reference numbers in the figures:

1. an outer sleeve; 2. a wire rope inner core; 21. a steel cable; 22. a steel cable connecting pipe; 23. a wire rope connecting rod; 3. a clamping part; 31. a cup holder; 32. a fixed shaft; 331. a first jaw cup; 332. a second jaw cup; 3301. saw teeth; 34. a linkage assembly; 341. a first connecting piece; 342. a second connecting sheet; 343. a connecting shaft; 35. a gasket; 4. a handle portion; 401. a bolt; 402. a bolt hole; 403. a containing groove; 41. a first plier handle; 4101. mounting grooves; 411. a first top cover; 42. a second forceps handle; 4201. a fixing groove; 421. a second top cover; 43. a handle shaft; 44. a torsion spring; 45. screwing the cap; 451. connecting columns; 46. a damage-preventing pipe; 47. the cable secures the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

As described in the background of the present application, when the biopsy forceps are used, they enter the human body through the endoscope or the skin, and are positioned to the suspicious lesion position of the human body from the image, and the biopsy forceps capture the suspicious lesion tissue and perform the pathological biopsy and cytological examination on the suspicious lesion tissue, or directly pick the suspicious lesion tissue.

The inventor of the application finds that the biopsy forceps in the prior art are inconvenient to control the clamping part and rotate, so that the biopsy tissue is inconvenient to cut.

In order to solve the above problems, the inventor of the present application proposes a technical solution of the present application, and specific embodiments are as follows:

fig. 1 is a schematic view of a biopsy forceps in an embodiment of the present invention, fig. 2 is an enlarged view of a position in fig. 1 in an embodiment of the present invention, fig. 3 is an enlarged view of a position B in fig. 1 in an embodiment of the present invention, fig. 4 is a schematic view of a linkage assembly in an embodiment of the present invention, fig. 5 is a schematic view of a gasket in an embodiment of the present invention, fig. 6 is a schematic view of a local portion of a handle portion in an embodiment of the present invention, and fig. 7 is another schematic view of a local portion of a handle portion in an embodiment of the present invention.

As shown in fig. 1 to 7, the biopsy forceps of the present embodiment includes: outer tube 1, steel cable inner core 2, pincers portion 3 and handle portion 4.

The outer sleeve 1 is made of stainless steel materials with good biocompatibility, no toxicity, no harm and corrosion resistance, and the inner part of the outer sleeve 1 is hollow and is provided with a through pipe cavity.

The clamping part 3 and the handle part 4 are respectively arranged at the far end and the near end of the outer sleeve 1, the near end of the outer sleeve 1 is fixedly connected with the handle part 4, and the handle part 4 can drive the outer sleeve 1 to rotate.

The grasping section 3 includes: a cup holder 31, a fixed shaft 32, a first jaw cup 331, a second jaw cup 332, and a linkage assembly 34.

The cup seat 31 is arranged on the outer sheath tube 1, the near end of the cup seat 31 is sleeved on the outer sheath tube 1 and is fixedly connected with the outer sheath tube 1, the cup seat 31 rotates along with the outer sheath tube 1, and the far end of the cup seat 31 is provided with a rectangular through groove 311.

The fixing shaft 32 is fixedly inserted into the distal end of the cup holder 31, and the fixing shaft 32 is located at the rectangular through slot 311 of the cup holder 31.

The linkage assembly 34 is disposed at the rectangular through slot 311 of the cup holder 31.

The first jaw cup 331 and the second jaw cup 332 are arranged in a scissors-shaped crossing manner, the first jaw cup 331 and the second jaw cup 332 are rotatably arranged on the fixed shaft 32 in a penetrating manner, and the proximal ends of the first jaw cup 331 and the second jaw cup 332 are positioned at the rectangular through groove 331 of the cup seat 31 and are connected with the linkage assembly 34. The side walls of the other ends (distal ends) of the first and second jaw cups 331 and 332 are zigzag-shaped and provided with saw teeth 3301.

The cable inner core 2 is arranged in the lumen of the outer sleeve 1 in a penetrating way, the near end of the cable inner core 2 is connected with the handle part 4, and the far end of the cable inner core 2 is connected with the linkage assembly 34.

In the embodiment, the handle part can drive the first jaw cup and the second jaw cup to rotate through the outer sheath tube, so that the tissue of a required part can be conveniently cut; the distal end that handle portion passes through the steel cable inner core and drives first jaw cup and second jaw cup is close to and keeps away from each other, and first jaw cup and second jaw cup are closed each other when being close to each other, and the mutual interlock of sawtooth on first jaw cup and the second jaw cup to cutting biopsy tissue, and keep the biopsy tissue of cutting in the cavity of jaw cup, control the convenience to the cutting of tissue.

It can be easily found from the above that, the biopsy forceps of the present embodiment, by providing the outer sheath, the wire cable core, the grasping portion, and the handle portion, the grasping portion includes: the steel cable clamp comprises a cup seat, a fixed shaft, a first clamp mouth cup, a second clamp mouth cup and a linkage assembly, wherein the cup seat is arranged on an outer sleeve, the first clamp mouth cup and the second clamp mouth cup are rotatably arranged on the fixed shaft, a steel cable inner core is arranged in the outer sleeve in a penetrating mode, the near end of the steel cable inner core is connected with a handle portion, and the far end of the steel cable inner core is connected with the first clamp mouth cup and the second clamp mouth cup through the linkage assembly. The biopsy forceps of the embodiment can drive the forceps taking part to rotate through the handle part, so that the biopsy tissue of a required part can be conveniently grabbed and cut; the sawteeth of the first jaw cup and the second jaw cup are meshed with each other through the handle part, so that the cutting of biopsy tissues is realized, and the operation and control of the clamping part are convenient; the handle part is kneaded after the jaw cup reaches the biopsy part, the jaw cup is opened, the handle part is loosened, the jaw cup automatically closes the tissue to be clamped and cut, and the operation is convenient and fast.

Alternatively, as shown in fig. 4, in the biopsy forceps of the present embodiment, the wire rope core 2 includes: steel cables 21, cable connecting pipes 22 and cable connecting rods 23.

The cable connecting pipe 22 is arranged in the outer sleeve 1 and is positioned at the far end of the outer sleeve 1 close to the clamping part 3.

The steel cable 21 is formed by twisting a plurality of strands of stainless steel wires, and the steel cable 21 has certain flexibility and certain rigidity.

The steel cable 21 is arranged in the cavity of the outer sleeve 1 in a penetrating way, the far end of the steel cable 21 is fixedly connected with the steel cable connecting pipe 22, and the near end of the steel cable 21 is connected with the handle part 4.

The cable connecting rod 23 is arranged in the outer sleeve 1 in a penetrating way, the near end of the cable connecting rod 23 is fixedly connected with the cable connecting pipe 22, and the far end of the cable connecting rod 23 extends into the rectangular through groove 311 of the cup seat 31 and is connected with the linkage component 34.

Further, as shown in fig. 2 and 4, in the biopsy forceps of the present embodiment, the linkage assembly 34 includes: a first connecting piece 341, a second connecting piece 342 and a connecting shaft 343.

The distal end of the wire rope connecting rod 23 is provided with a through hole, the connecting shaft 343 is arranged in the through hole of the wire rope connecting rod 23 in a penetrating manner, the proximal ends of the first connecting piece 341 and the second connecting piece 342 are rotatably sleeved on the connecting shaft 343 and are respectively positioned at two sides of the wire rope connecting rod 23, and the other ends (distal ends) of the first connecting piece 341 and the second connecting piece 342 are respectively rotatably connected with the proximal ends of the first jaw cup 331 and the second jaw cup 332.

In the embodiment, when the steel cable connecting rod extends outwards, the far ends of the first jaw cup and the second jaw cup are far away from each other through the first connecting piece and the second connecting piece; when the steel cable connecting rod retracts inwards, the far ends of the first jaw cup and the second jaw cup are close to each other until the far ends are closed, and the saw teeth of the first jaw cup and the saw teeth of the second jaw cup are meshed with each other to cut biopsy tissues.

Further, as shown in fig. 5, in the biopsy forceps of the present embodiment, the grasping portion 3 further includes: a shim 35.

The gasket 35 is sleeved on the fixed shaft 32 and located between the first jaw cup 331 and the second jaw cup 332, so that the first jaw cup 331 and the second jaw cup 332 can rotate conveniently.

Further, as shown in fig. 3, 6, and 7, in the biopsy forceps according to the present embodiment, the handle portion 4 includes: a first jaw handle 41, a second jaw handle 42, a handle shaft 43, and a torsion spring 44.

The first forceps handle 41 and the second forceps handle 42 are arranged in a scissors-shaped cross manner, and the middle parts of the first forceps handle 41 and the second forceps handle 42 are rotatably connected through a handle shaft 43.

The torsion spring 44 is sleeved on the handle shaft 43 and located between the first forceps handle 41 and the second forceps handle 42, and two ends of the torsion spring 43 are respectively and fixedly arranged on the first forceps handle 41 and the second forceps handle 42.

The top end of the second clamp handle 42 is provided with a second channel therethrough.

The steel cable 21 is slidably disposed through the second channel of the second jaw handle 42, and the proximal end of the steel cable 21 is secured to the first jaw handle 41.

In this embodiment the malaxing moves the lower ends of the first and second handles and the cable core is pushed forwardly whilst the torsion spring is compressed to store force. When the steel cable inner core moved forward, the distal end of first pincers mouth cup and second pincers mouth cup kept away from each other (keeping silent and opening), loosens the lower extreme of first pincers handle and second pincers handle, and under the effect of torsional spring, the steel cable inner core moved backward, and the distal end of first pincers mouth cup and second pincers mouth cup is close to each other (keep silent the closure), cuts the biopsy tissue, and it is convenient to control of the portion of getting to the pincers.

Further, in the biopsy forceps of this embodiment, a first top cover 411 is disposed on the top of the first forceps handle 41, and a second top cover 421 is disposed on the top of the second forceps handle 42.

The bottom of the first top cover 411 and the bottom of the second top cover 421 are provided with bolts 401, the top surfaces of the first plier handles 41 and the second plier handles 42 are provided with bolt holes 402, and the bolt holes 402 are used for inserting the bolts 401, so that the first top cover 411 and the second top cover 421 are respectively detachably arranged on the first plier handles 41 and the second plier handles 42.

The steel cable 21 slidably passes through the space between the second handle 42 and the second top cover 421, and the proximal end of the steel cable 21 is fixed between the first handle 41 and the first top cover 411, so as to facilitate the connection and fixation of the steel cable 21.

Further, as shown in fig. 6 and 7, in the biopsy forceps according to the present embodiment, the handle portion 4 further includes: the cap 45 is screwed.

The screw cap 45 is provided with a through hole, and one end of the screw cap 45 is provided with a step-shaped connecting column 451.

The second handle 42 and the second cover 421 are provided with fixing grooves 4201.

The cap 45 is disposed at the distal end of the second handle 42, and the connecting rod 451 of the cap 45 is rotatably inserted into the fixing grooves 4201 of the second handle 42 and the second cap 421 and is located between the second handle 42 and the second cap 421.

The outer sleeve 1 is arranged in the through hole of the screw cap 45 in a penetrating way and is fixedly connected with the screw cap 45.

In this embodiment, the spin cap is rotatably disposed on the handle portion, and the outer sheath tube is fixed to the spin cap. The rotating cap drives the outer sheath tube and the cup holder to rotate synchronously, namely, the rotating cap drives the first jaw cup and the second jaw cup to rotate, and the rotation of the first jaw cup and the second jaw cup at any angle is realized.

Further, in the biopsy forceps of the present embodiment, the handle portion 4 further includes: a damage-stopping tube 46.

The damage-preventing pipe 46 is arranged in a second channel of the second clamp handle 42, the damage-preventing pipe 46 is fixedly adhered with the second clamp handle 42 through glue and the like, the steel cable 21 can slidably penetrate through the damage-preventing pipe 46, and the second channel of the second clamp handle is prevented from being worn when the steel cable slides in the second clamp handle.

Further, in the biopsy forceps of the present embodiment, the handle portion 4 further includes: the cable holds the tube 47.

The first jaw lever 41 and the first upper cover 411 are provided with a mounting groove 4101 and a first passage.

The cable fixing tube 47 is disposed in the mounting groove 4101 of the first handle 41 and the first cover 411, and is located between the first handle 41 and the first cover 411, and the proximal end of the steel cable 21 passes through the first passage of the first handle 41 and is fixedly connected to the cable fixing tube 47, so as to facilitate the connection and fixation of the steel cable and the first handle.

Further, in the biopsy forceps of the present embodiment, the first forceps handle 41 and the second forceps handle 42 are provided with the accommodating groove 403 on the inner side walls close to each other.

The torsion spring 44 is sleeved on the handle shaft 43, and two ends of the torsion spring 44 are respectively embedded in the accommodating grooves 403 of the first forceps handle 41 and the second forceps handle 42, so that the torsion spring 44 can be conveniently fixed.

The utility model discloses a biopsy forceps, its application method does:

1. feeding: the first and second jaw cups are in a closed initial configuration, and the biopsy forceps are directed under an image map to a capture position.

2. The operator pinches the lower ends of the first forceps handle and the second forceps handle, the torsion spring is compressed to store force, meanwhile, the steel cable inner core is pushed forwards, when the steel cable inner core moves forwards along the outer sleeve, the first forceps opening cup and the second forceps opening cup are far away from each other, the forceps openings are opened, and then the forceps openings are aligned to tissues to be grabbed.

3. Aligning the jaw to the tissue to be grabbed, loosening the first jaw handle, releasing the torsion spring, restoring the torsion spring, moving the rear end of the steel cable backwards, enabling the first jaw cup and the second jaw cup to approach each other, closing the jaw, grabbing and cutting the biopsy tissue, and storing the grabbed biopsy tissue in a jaw cup cavity formed by meshing after the grabbed biopsy tissue is meshed and cut by the jaw tooth shape.

4. Evacuation: after the steps are completed, the biopsy forceps are withdrawn from the puncture channel, and the pathological tissue smear taken by the forceps is tested, so that the purpose of tissue diagnosis is achieved.

In the present application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first feature or the second feature or indirectly contacting the first feature or the second feature through an intermediate.

Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. Biopsy forceps, characterized by comprising: the outer sleeve, the steel cable inner core, the clamping part and the handle part are arranged on the handle;

the clamping part and the handle part are respectively arranged at the far end and the near end of the outer sleeve, and the handle part is used for driving the clamping part to rotate;

the grasping portion includes: the cup comprises a cup seat, a fixed shaft, a first jaw cup, a second jaw cup and a linkage assembly;

the cup seat is arranged on the outer sleeve and provided with a rectangular through groove;

the fixed shaft is arranged on the cup base and is positioned at the rectangular through groove;

the first jaw cup and the second jaw cup are rotatably arranged on the fixed shaft, and the far ends of the first jaw cup and the second jaw cup are provided with sawteeth;

the wire rope inner core wears to establish in the overcoat pipe, the near-end of wire rope inner core with handle portion connects, and the distal end passes through the linkage subassembly with first jaw cup with the second jaw cup is connected, handle portion is used for making first jaw cup with the distal end of second jaw cup is close to each other and is kept away from, first jaw cup with the distal end of second jaw cup is when being close to each other, first jaw cup with the mutual interlock of sawtooth of second jaw cup is in order to cut biopsy tissue.

2. The bioptome of claim 1, wherein the cable core comprises: the steel cable, the steel cable connecting pipe and the steel cable connecting rod;

the steel cable connecting pipe is arranged at the far end of the outer sleeve;

the far end of the steel cable is connected with the steel cable connecting pipe, and the near end of the steel cable is connected to the handle part;

the near end of the steel cable connecting rod is connected with the steel cable connecting pipe, and the far end of the steel cable connecting rod extends into the rectangular through groove and is connected with the linkage assembly.

3. The bioptome of claim 2, wherein the linkage assembly comprises: the first connecting piece, the second connecting piece and the connecting shaft;

one end of the first connecting sheet and one end of the second connecting sheet are rotatably connected with the steel cable connecting rod through the connecting shaft, and the other ends of the first connecting sheet and the second connecting sheet are rotatably connected with the first jaw cup and the second jaw cup respectively.

4. The bioptome of claim 3, wherein the grasping portion further comprises: a gasket;

the gasket penetrates through the fixed shaft and is positioned between the first jaw cup and the second jaw cup.

5. The biopsy forceps of claim 2, wherein the handle portion comprises: the clamp comprises a first clamp handle, a second clamp handle, a handle shaft and a torsion spring;

the first forceps handle and the second forceps handle are arranged in a scissor shape and are rotatably connected through the handle shaft;

the torsion spring is sleeved on the handle shaft and positioned between the first forceps handle and the second forceps handle, and two ends of the torsion spring are respectively arranged on the first forceps handle and the second forceps handle;

the second clamp handle is provided with a second channel;

the steel cable is slidably arranged in the second channel in a penetrating mode and is fixed on the first clamp handle.

6. The biopsy forceps of claim 5, wherein the first forceps handle is provided with a first cap, the first cap is detachably disposed on the first forceps handle, and the steel cable is inserted between the first forceps handle and the first cap;

the second clamp handle is provided with a second top cover, the second top cover is detachably arranged on the second clamp handle, and the steel cable is arranged between the second clamp handle and the second top cover.

7. The biopsy forceps of claim 5, wherein the handle portion further comprises: screwing the cap;

the rotating cap is provided with a connecting column;

the second clamp handle is provided with a fixing groove;

the screw cap is arranged at the far end of the second forceps handle, and the connecting column is inserted into the fixing groove;

the outer sleeve is fixed on the screw cap.

8. The biopsy forceps of claim 5, wherein the handle portion further comprises: a damage-preventing pipe;

the damage stopping pipe is fixedly arranged in the second channel, and the steel cable is slidably arranged in the damage stopping pipe in a penetrating mode.

9. The biopsy forceps of claim 5, wherein the handle portion further comprises: a wire rope fixing tube;

the first clamp handle is provided with a mounting groove and a first channel;

the steel cable fixing pipe is arranged in the mounting groove, and the steel cable penetrates through the first channel and is connected to the steel cable fixing pipe.

10. The biopsy forceps of any one of claims 5 to 9, wherein the first forceps handle is provided with a first receiving slot and the second forceps handle is provided with a second receiving slot;

the first accommodating groove and the second accommodating groove are respectively used for embedding the two ends of the torsion spring.

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